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' A. SEINECKE.

Machine for Bending Horseshoes.

"No. 243,314. Patented June 21,1881.

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'4. Pairs mow-saw. wmm m c UNITED STATES PATENT Onricno ADOLPH SEINEOKE, OF CINCINNATI, OHIO, ASSIGNOR TO JOHN A. EBER- v HARDT, LOUIS A. ROTH, AND MOSES M. MARKS, OF SAME PLACE.

MACHINE. FOR BENDING HORSESHOES.

SPECIFICATION forming part of Letters Patent No. 243,314, dated June 21, 1881.

Application filed September 28, 1880. (Model.)

.To all whom it may concern Be it known that I, ADOLPH SEINECKE, of Cincinnati, Hamilton county, Ohio, have invented a new and useful Machine for Making Corrugated Horseshoes, of which the following is a specification.

My machine consists, essentially, of a reciprocating carriage or bed-plate armed with a pair of racks that gear with pinions at the opposite ends of a cylinder or drum, whereby a reciprocating rotary motion is imparted to the latter device. This carriage has secured to it a die, into which the heated blankis forced by means of a swage applied to said cylinder, or

this arrangement of die and swage may be exactly reversed, as hereinafter more fully described, and pointed out in the claim.

In the annexed drawings, Figure 1 is a front elevation of my improved bender, the carriage or slide being shown in its normal position and a bar represented as being fed into the machine, a portion of the bridge of the latter being broken away. Fig. 2 is an elevation of the lower portion of the ll'ltlClllllQjllG slide or 2 carriage being represented as having completed its descending or effective stroke, and the bent shoe being shown seated in the (lie. Fig. 3 is an enlarged vertical section taken transverselyoftheswaging-cylinder,theswage o proper being shown in the act of forcing the bent blank into the die. Fig. 4 is an enlarged plan, showing one of the bending-rollers in the act of bending the blank around the former. Fig. 5 is an enlarged elevation of the die and 5 portions of the swaging-cylinder and bendingrollers, said swage being shown as havin g j ust *come in contact with the blank.

Referring to Figs. 1 and 2, A A represent the principal beams or plates of a stout frame,

40 within which is adapted to reciprocate aslide or plunger or carriage, B, having two racks, T T, that gear respectively with spur-wheels U U, attached to the opposite ends of a swaging drum or cylinder or roll, 0. Secured to this 5 cylinderwith abolt,V, or otherwise, is ablock, D,from the periphery of which projects a swage, E, developed around said block, so as to have the shape of the die into which the heated blankis to be pressed, the block being cut away at e to clear the former when cylinder 0 revolves.

Attached athwart the frame, immediately above the cylinder 0, is a bridge, F, suppo ing two guides,ff, ofwhich the one,f, may have a stop, WV, to limit the entrance of the heated blank G. These guides are bent, as more clearly shown in Fig. 3, to allow the blank to rest in such a position as to be struck in its mid-length by the former H when carriage B descends. This former H is a heavy plate of the same shape as the interior of the shoe, and is secured to the die I with screws or bolts h. Die I has a marginal flange or curb, i, and is shown as provided with a series of radial flutes, so as to impart to the blank or bar the peculiar arrangement of corrugations. seen in Letters Patent No. 182,535, granted September26, 1876, to A.B. Seymour, although said die may be so shaped as to produce any other kind of corrugations or creases. This curb or marginal flange i must be stout enough to prevent lateral spreading of the blank when it is subjected to the intense pressure of swage E. The heel end of this die is clamped to carriage B by a guard-rail, J, secured with bolts j, while an extension, K, at the toe of said die passes under another guard-rail, L, attached to said slide 13 with screws 1.

Bolted to the main frame are two brackets, a a, to which are pivoted levers M M, the shorter armsof whichhave journaled in them the flanged bending-rollers O 0 O 0, (seen in Figs. 1, 4, and5,) the longer arms of these levers being drawn toward the beams A A, either by a spring, N, or weights N, or by any other suitable appliances.

Projeetinglaterally from thecarriage B, and traversing slots in the main frame, are lugsP P, to which are coupled connecting-rods p p, operated by the cranks r r of driving-shaft R; or said carriage may be reciprocated with any other suitable devices.

S S represent the two outer rollers of a set employed for supporting the carriage B when the machine is arranged horizontally, as the bender may be used with equal facility in several different positions.

My machine is operated in the following manner: When the machine is in its normal position the carriage, slide, or plunger B is elevated or retracted, as seen in Fig. 1, there- ICQ by causing the bending-rollers O 0 0 o to bear with a greater or less pressure against the guard-rail L, according to the tension of spring N or the weight of disks N. The heated blank G, of the proper length, is now fed into the guidesff as far as the stop W will permit, which insertion of the blank may either be accomplished automatically or by hand. The carriage B is then caused to descend, and in so doing the toe or advancing end of the former His brought in contact with the blank at the mid-length of the latter, thereby bending said blank far enough to cause its opposite ends to escape from the guides ff. The moment this takes place the advancing movement of carriageB causes the flanges 0 o of rollers O O to press against the outer edges of the blank, as indicated by the dotted circle X in Fig. 4, and thus bend said blank tightly around the sides of former H. As soon as these rollers have initiated the bending of the blank the drum or cylinder 0 will have been rotated so far in the direction indicated by the arrow in Fig. 3 as to cause the shoe-shaped swage E to gripe the bend of said blank and force it with a very great pressure down into the die I. The continued descent of the carriage now causes the rollers O o 0 0 to bend the blank completely around the sides of former I'I, during which operation said rollers describe curved paths. (Indicated by the arrow Yin Fig. 4.) As soon, however, as the bar has been completely bent the smaller diameters O O of the rollers run along the guard-rail J, which rail prevents said rollers coming in contact with each other while the carriage is continuing its effectit e stroke. Furthermore, as the carriage travels along the cavity or pit c in the block D enables the cylinder or drum 0 to revolve without producing any contact of the former H with said cylinder or block, while at the same time the side portions of swage E are rolling the corresponding parts of blank Gr down into the sides of the die I. 'When the carriage has finished its stroke, as seen in Fig. 2, the pre viously straight blank will be found to have been bent into a shape exactly corresponding to that of the former H, while the concealed face of said blank will he a reversed facsimile of the die I, whatever that may be. The blank having been thus bent, and the desired corrugations rolled therein, it may now be forced from the die by a pusher operated by a cam or otherwise.

After the finished shoe is discharged from the machine the carriage B is at once restored to its normal position,and the above-described operations are repeated.

Every time a shoe is made in my machine it is evident the curb t of die I prevents lat eral expansion of the blank while it is being subjected to the heavy pressure of swage E but as the action of this swage causes a certain displacement of the metal to take place on account of the corrugations made in the bar, itis apparent this spreading of the material can take place only longitudinally of the blank; or, in other words, the surplus metal is rolled simultaneously toward both ends of the blank, where it can be readily cut off when the shoe or other device is finished.

The above is a description of the preferred construction of machine wherewith my bending process is carried into operation; but it is evident the device may be greatly modi fied without deviating from the leading feature of the invention-as, for example, the die I may be cut in the block D and the shoe shaped swage E be fastened to the reciprocating member B, in which event another cylinder may be journaled below the one C for the purpose of perforating or countersinking the shoe; or the swage E may be so shaped as to roll and concave the blank at one operation. Finally, when it is desired to produce the special form of horseshoe seen in the patent referred to in this specification, the bar may be first rolled into a W shape, then cut off at suitable lengths and reheated before being bent, which previous shaping of the bar will greatly reduce the labor of the bending and pressing devices herein described.

I claim as my invention The combination, in a horseshoe-bender, of.

the reciprocating carriage B, armed with racks T T, that gear with the complete pinions U U of the swaging-cylinderO and impart a reciprocating rotary motion to said cylinder, as and for the purpose set forth.

In testimony of which invention I hereunto set my hand.

ADOLPH SEINEOKE. Witnesses:

JAMES H. LAYMAN, JEREMIAH F. TWOHIG.

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